Home / 39,376.49-54,338.36-21,471.85

Finding the Fourth Proportional to 39,376.49, 54,338.36 and 21,471.85

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Solution

The fourth proportional to 39,376.49, 54,338.36 and 21,471.85 is: 29,630.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,376.49 : 54,338.36 = 21,471.85 : x
  2. Step 2: Convert to fraction form
    39,376.49/54,338.36 = 21,471.85/x
  3. Step 3: Cross multiply
    39,376.49x = 54,338.36 × 21,471.85
  4. Step 4: Simplify right side
    39,376.49x = 1,166,745,033.00
  5. Step 5: Solve for x
    x = 1,166,745,033.00/39,376.49
  6. Step 6: Final answer
    x = 29,630.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.